Year	Percent of GDP
2004-01-01	17.8622
2005-01-01	21.7962
2006-01-01	25.6067
2007-01-01	33.2002
2008-01-01	28.9312
2009-01-01	34.4413
2010-01-01	39.6364
2011-01-01	39.4278
2012-01-01	41.1851
2013-01-01	39.5833
2014-01-01	43.1464
2015-01-01	44.5918
2016-01-01	47.9428
2017-01-01	49.4957